What are the most important factors in chemical weathering?
•water vapor and carbonic acid
•water and carbon dioxide
•water and soil
•carbon dioxide and chemicals in polluted air

Which of the following statements best describes the quantity theory of inflation? a.inflation occurs because production cost rise and this cost increase is passed on to consumers in the form of higher prices b. inflation occurs because there is too much money in the economy c. inflation occurs because demand of good and services exceeds existing supplies d. none of these